package com.hotel.daos;

import com.hotel.entitys.Checkin;

public interface CheckinMapper {
    public int addCheckin(Checkin checkin);
    public Checkin selectCh(Integer room_id);
    int updateCh(Checkin checkin);
    public Checkin selAllCheckin(Integer room_id );
    public Double selSum(Checkin checkin);
}
